How to send direct message
This feature let you send direct message to anyone in your workspace
How it Works
Search the name of the person from sidebar which you want to send a message to.
You can either select the name of the person from people section.
Once you select, type the message in the chat footer and send it directly by cmd+enter or enter as per your preference.
Benefit
Direct message is for one on one conversation that don't require a channel, You can easily communicate or share any important information with anyone in your workspace.
Refer this video to see more in details - https://youtu.be/H-j1s08qCpY